package com.atguigu.netty.codec2;

import com.atguigu.netty.codec1.StudentPOJO;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

import java.util.Random;

/**
 * @author: 叶子
 * @date: 2022/02/08 18:25
 **/
public class NettyClientHandler extends ChannelInboundHandlerAdapter {
    //        当通道就绪时就会触发该方法
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
//        随机发送Student 或者Worker 对象
        int random = new Random().nextInt(3);
        MyDataInfo.MyMessage myMessage = null;
        if (0 == random) {//发送Student对象
            myMessage = MyDataInfo.MyMessage.newBuilder().setDataType(MyDataInfo.MyMessage.DataType.StudentType).setStudent(
                    MyDataInfo.Student.newBuilder().setId(5).setName("琳琳").build()).build();
        } else {//发送Worker对象
            myMessage = MyDataInfo.MyMessage.newBuilder().setDataType(MyDataInfo.MyMessage.DataType.WorkerType).setWorker(
                    MyDataInfo.Worker.newBuilder().setAge(30).setName("陈琳琳").build()
            ).build();
        }
        ctx.writeAndFlush(myMessage);
    }

    //    当通道有读取事件时，会触发
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buf = (ByteBuf) msg;
        System.out.println("服务器回复的消息：" + buf.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址：" + ctx.channel().remoteAddress());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.close();
    }
}